Overview. Complex carbohydrates are made up of sugar molecules that are strung together in long, complex chains. Complex carbohydrates are found in foods such as peas, beans, whole grains, and vegetables.
Confidence votes 11.2K. Taught College level A&P for 27 years. The lens in the human eye is a convex lens, but it is flexible and when it is acted on by the ciliary muscle around it, the lens can be flattened to change the focus, or, when the muscle is relaxed, the lens can assume a more spherical shape.
The eye contains a lens that bends light rays so that they meet exactly on a part of the eye known as the retina. The shape of the lens changes to allow the eye to see objects at different distances. If the lens does not bend light rays properly, the result is nearsightedness or farsightedness.